Device with retarded release



June 14, 1932. 1,863,092

J. A. ALTMAYER, SURNAMED ALTMAYER-DELARUELLE DEVICE WITH RETARDED RELEASE Filed July 2 1925 2 Sheets-Sheet l 22 1? 313 M g a T21 m as 5'2 QM" 33 =/27 30 J 25 131 g #19] I My L17 26% at 1 JWMKA June 14,1932. 1,863,092

J. A. ALTMAYER. SURNAMED ALTMAYER-DELARUELLE DEvIcE WITH RETARDED RELEASE Filed July 27, 1925 2 Sheets-Sheet 2 Fig.5

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Patented June 14, 1932 UNITED STATES PATENT OFFICE" DEVICE WITH RETARDED RELEASE Application filed Ju1y'27, 1925, Serial No. 46,504, and in France August 7, 1924.

The present inventionhas for its object a slow to energize relay system, which is adapted to be energized by theclosing or opening of a starting circuit, but only if the closing a or opening of the said circuithas a predetermined duration. If the duration, of the closing or opening of the said circuit is less than the said predetermined duration, the relay system will not be energized.

The relay system according to the invention may be used for many applications, some of which are mentioned hereinafter as examples only; but it is to be understood that the invention is not limited to the said applicai; tions, as it may be used for any other purpose.

Excess of voltage in an electrical network can be damageable if the said excess of voltage exceeds a certain duration. It is conse- 2o quently necessary to cut ofi the current in relay system accordingto the invention allows to cut off the current only if-the duration of the excess of voltage exceeds the duration for which the relay system is set.

It is-common that the tariff for telephone exchanges is difierent according to the duration of the communication. Assuming for instance that a certain tariff is applicable if the conversation is less than 3 minutes, and another tariff for longer conversations, the relay system according to the invention is liable to operate the change of tarifl in the meter when the three minutes have elapsed.

The accompanying drawings illustrate, by way of example only, a form of execution of this invention.

Figure 1 is a diagram of connections. Figure 2 is an elevation of the apparatus, assuming that the said apparatus is in operation.

.20 and 20 Figure 3 is a section made according to line lII-III of Fig. 2.

Figure 4 is a partial plan View of one of the members.

Figure 5 is an elevation of the apparatus, assuming that the said apparatus is at rest.

The apparatus illustrated is essentially constituted by two pendula, the rods 1 and 2 of which rest through knife edges 3 and 4 on supporting surfaces 5 and 6 arranged on an insulating member 7.

The pendula have spheres 8 and 9 adjustable in position on the rods 1 and 2, and which are hollow, so that they can be partially or completely filled with heavy materials. It is therefore possible to modify the period of. oscillation of each pendulum by changing either the position or the mass of the spheres 8 and 9.

The pendula carry also soft iron cores 10 and 11 of two electromagnets 12 and 13, adapt-' ed to sustain the oscillations of the pendula; these latter have, at their end, contacts 14 and 15, arranged for coming in contact in certain cases, and other contacts 16 and 17,

7 arranged for coming respectively in engage-' ment, at certain given times, with fixed contacts 19 and 18.

When the apparatus is at rest, the pendula 1 and 2 are maintained, by certain means 7?; described hereinafter, in parallel positions of maximum obliquity, asshown by Fig. 5. The said means are constituted by the arms 20 and 20 of a fork 20'which is fixed on a shaft 20 rotatable at its ends in the hearings n The fork 20 comprises also a counterweight 21 which tends to give to the fork the position shown in Figure 5. In this position, the rods 1 and 2 abut against the arms 20---20 of the fork, so that the said so rods are maintained in their position of" greatest obliquity.

On the shaft 20 is keyed an armature 23 belonging to an electromagnet 22; when the said electromagnet 22 is energized, it at tracts the armature 23, which causes the fork 20 to rotate in antagonism to the action of the counterweight, for releasing the pendula, which can freely swing.

The operation is as follows:

In this example, it is assumed that the closing of the starting circuit is obtained by the energization of the relay 24 which closes the contact 25.

The electromagnet 22 energizes through the circuit: positive pole of the battery 26-c0ntact 25-wire 33-electromagnet 22 wire 29contact 23 of the relay 24relay 24negative pole of the battery.

The resistance of the winding of the relay 24, and the power of the conventional spring which acts on the contact 23 for mailn taining the same in the position shown in Fig. 1, are computed with a view that the said contact 23 cannot be attracted by relay 24', when the said relay is in series either with the electromagnet 22, or with the electromagnets 12 and 13. The attraction of contact 23 can only take place when the relay 24 is directly energized by battery 26.

On the contrary, the electromagnets 22, 12 and 13 attract their armatures when energized, even in series with relay 24.

The electromagnet 22, when energized, attracts the armature 23 and releases the pendula 1 and 2 which, at this time, freely swing. Besides, it closes the contacts 26 and 27.

The member 3 is electrically connected at 28 to the wire 29 and the member 4 is connected at 30 to the wire 31, which is connected at 32 to the wire 33.

When, in the positionsymmetrical relatively to its original position, that is to say in the maximum angular position, the contact 16 of the pendulum 1 comes in engagement with the contact 19, the following circuit is closed: positive pole of the battery-contact 25contac't 26-el ctromagnet 12-contact 19-junction 28contact 23--relay 24negative pole of the battery. The electromagnet 12 energizes and attracts the core 10, thus giv- As the periods of the pendula 1 and 2' difl'er, a moment arrives when the contacts 14 and 15 touch each other. At this moment, the electromagnet 22 is short circuited and releases, so that from this moment the fork 20, the armature 23 of which is no longer attracted by 22, brings back the pendula their position of maximum obliquity under the action of the counterweight 21. Besides the electromagnet 24. is energized by: positive polecontact 25--wire 31-pendula 1 and arranged for comin with each other at a certain moment, means and 2wire 29'contact 23relay 24'negative pole. The contact 23 is attracted and closes at 34 a holding circuit for the electromagnet 24.

When the relay 24 is no longer energized, 25 falls back and opens the circuit of 24', which is deenergized, and the apparatus is ready for a new operation.

If contact 25 falls back before the energization of 24, the circuit of 22 is opened and the apparatus comes back to rest in the same manner as previously.

The duration between the energization of relay 24, and the energization of electromagnet 24 is adjustable: 7

(1) Either by modifying the position of the spheres 8 and 9; (2) or by modifying the massof these spheres 8 and 9; or by moving the contacts 14 and 15, which are secured in a. removable manner, for instance by screws such as 34 and 35. The displacement of the contacts 14 and 15 can take place parallel or at right angles to the rods 1 and 2.

What I claim as my invention and desire 'to secure by Letters Patent is 1. In a device With retarded release, two oscillating organs having different periods in engagement for controlling the oscillation of these oscillating organs, a source of electricenergy, a. circuit fed by the said source and comprising an electromagnet, means for energizing this electromagnet when the oscillating 01'- gans come in contact.

2. In a slowly energized relgy system, two

oscillating organs, having di erent periods and arranged for coming in engagement with each other at a certain moment, means for controlling the oscillation of these oscillating organs, a source of electric energy, a circuit fed by the said source and comprising an electromagnet, means for energizing of this electromagnet when the oscillating organs come in contact, means for maintaining the oscillation of the oscillating organs.

3. In a slowly energized relay system, two oscillating organs havingdifi'erent periods and arranged for coming in engagement with each other at a certain moment, a two branch fork, means for supporting said fork so that it can turn about a geometrical axis parallel to the oscillating plane of the pen- .dula, means for constantly exerting on said fork a force which tends to bring it into a predetermined initial position for which the said fork maintains the oscillating organs in their maximum an lar position, means to move the fork asi i and to release the oscillating organs, a source of electric energy, a clrcuit fed by the said source, and comprising an electromagnet, means for energizing of this electromagnet when the oscillating organs come in contact, means for maintaining the oscillation of the oscillating organs.

In testimony whereof I have signed my name to this specification.

JEAN ANDRE ALTMAYER,

unnamed ALTMAYER-DELARUELLE. 

